RS
Robert Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this Robert Sullivan across the 1920, 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed), with identified parents Laura & Arthur — first a son (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Sullivan |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis (City) |
| 1935 Residence (County) | St. Louis (City) |
| Additional Details | |
| Occupation | Clerk |
| Industry | Sullivan Sales Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 950 |
| Highest Grade | C 2 |
| 1935 Residence | Same House |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Clerk |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1918 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Arthur Sullivan | Head | — | 56 | ~1884 |
| Bridget Sullivan | Other | — | 81 | ~1859 |
| Robert Sullivan | Son | — | 22 | ~1918 |
Census Appearances
1920
St Louis, …
Son, age 2
St Louis, Missouri · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Louis, …
Son, age 12
St Louis, Missouri · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Son, age 22
St.-Louis-City-County, Missouri · implied b. ~1918 — 3 household members
| Surname | Sullivan |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis (City) |
| 1935 Residence (County) | St. Louis (City) |
| Occupation | Clerk |
| Industry | Sullivan Sales Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 950 |
| Highest Grade | C 2 |
| 1935 Residence | Same House |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Robert Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Laura Sullivan (~0.92 confidence) and father Arthur Sullivan (~0.92 confidence) and father Arthur Sullivan (~0.92 confidence) and mother Elsa Sullivan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Laura Sullivan
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
Arthur Sullivan
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Arthur Sullivan
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Elsa Sullivan
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Sullivan
Son · 1940 · age 22 · b. ~1918 · Missouri
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — St.-Louis-City-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-City-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02202-00409)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Josephine Dunn | 56 | Sister | Secretary | Missouri |
| 2 | Mary Dunn | 68 | Sister | — | Missouri |
| 3 | Arthur Sullivan | 56 | Head | Banker | Missouri |
| 4 | Robert Sullivan THIS PERSON | 22 | Son | Clerk | Missouri |
| 5 | Bridget Sullivan | 81 | Mother | — | Missouri |
| 6 | William Heitman | 65 | Head | Medical Dept | Illinois |
| 7 | Melda Heitman | 62 | Wife | — | Illinois |
| 8 | Emily Enteman | 55 | Head | Seamstress | Missouri |
| 9 | Lucy Enteman | 53 | Sister | — | Missouri |
| 10 | Richard Doellner | 33 | Son | — | Missouri |
| 11 | William Kuhlhoff | 72 | Head | — | Missouri |
| 12 | Frances Kuhlhoff | 71 | Wife | — | Missouri |
| 13 | Adabelle Kuhlhoff | 42 | Daughter | Clerk | Missouri |
| 14 | Lillie Bigbey | 61 | Head | Rooming House | Missouri |
| 15 | Carrie Tinker | 73 | Lodger | — | Missouri |
| 16 | Alvira Delien | 27 | Lodger | Packer | Missouri |
| 17 | Patrick Mcmahon | 52 | Lodger | Driver | Missouri |
| 18 | Frank Schmullen | 65 | Head | Plumber | Kentucky |
| 19 | Nellie Schmullen | 48 | Sister | Clerk | Missouri |
| 20 | Albert Boland | 50 | Head | Furnace | Missouri |
| 21 | Irene Boland | 42 | Wife | — | Missouri |
| 22 | Irene Boland | 20 | Daughter | — | Missouri |
| 23 | Albert Jr. Boland | 17 | Son | — | Missouri |
| 24 | Frances Boland | 16 | Daughter | — | Missouri |
| 25 | George Edwards | 33 | Head | Salesman | Illinois |
| 26 | Mary Edwards | 32 | Wife | — | Missouri |
| 27 | George W. Edwards | 7 | Son | — | Missouri |
| 28 | Mary Sue Edwards | 3 | Daughter | — | Missouri |
| 29 | Myrtle Sherman | 58 | Head | — | Missouri |
| 30 | Shirly Sherman | 13 | Daughter | — | Missouri |
| 31 | Willie Charlisville | 55 | Maid | Maid | Missouri |
| 32 | John Halee | 55 | Head | Molder | Missouri |
| 33 | Louise Halee | 52 | Wife | Roomhouse | West Virginia |
| 34 | Stanley Halee | 27 | Son | Car Washer | Missouri |
| 35 | Evelyn Halee | 25 | Daughter | — | Missouri |
| 36 | John Jr. Halee | 31 | Lodger | Driver | Missouri |
| 37 | Mildred Halee | 25 | Lodger | — | Missouri |
| 38 | Mike Bona | 28 | Lodger | Welder | Missouri |
| 39 | Mae Bona | 18 | Lodger | — | Missouri |
| 40 | Elizabeth Smith | 55 | Lodger | Stitcher | Germany |
Pedigree Summary
Robert
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)